<!DOCTYPE HTML>
<html>
<body>
<div id="content" style="display: none">
  <audio id="audio1" />
  <audio id="audio2" mozaudiochannel="foo" />
</div>

<script type="application/javascript">

function is(a, b, msg) {
  parent.postMessage({ status: a === b, msg: msg }, '*');
}

function ok(a, msg) {
  parent.postMessage({ status: !!a, msg: msg }, '*');
}

function finish() {
  parent.postMessage({ finish: true }, '*');
}

function test_basic() {
  var audio1 = document.getElementById("audio1");
  ok(audio1, "Audio Element exists");
  is(audio1.mozAudioChannelType, "normal", "Default audio1 channel == 'normal'");
  try {
  audio1.mozAudioChannelType = "foo";
  } catch(e) {}
  is(audio1.mozAudioChannelType, "normal", "Default audio1 channel == 'normal'");

  var audio2 = document.getElementById("audio2");
  ok(audio2, "Audio Element exists");
  is(audio2.mozAudioChannelType, "normal", "Default audio2 channel == 'normal'");
  try {
  audio2.mozAudioChannelType = "foo";
  } catch(e) {}
  is(audio2.mozAudioChannelType, "normal", "Default audio2 channel == 'normal'");

  runTest();
}

function test_preferences(aChannel) {
  SpecialPowers.pushPrefEnv({"set": [["media.defaultAudioChannel", aChannel ]]},
    function() {
      var audio = document.createElement('audio');
      ok(audio, "Audio Element created");
      is(audio.mozAudioChannelType, aChannel, "Default audio channel == '" + aChannel + "'");
      runTest();
    }
  );
}

function test_wrong_preferences() {
  SpecialPowers.pushPrefEnv({"set": [["media.defaultAudioChannel", 'foobar' ]]},
    function() {
      var audio = document.createElement('audio');
      ok(audio, "Audio Element created");
      is(audio.mozAudioChannelType, 'normal', "Default audio channel == 'normal'");
      runTest();
    }
  );
}
var tests = [
  test_basic,

  function() { test_preferences("content"); },
  function() { test_preferences("notification"); },
  function() { test_preferences("alarm"); },
  function() { test_preferences("telephony"); },
  function() { test_preferences("ringer"); },
  function() { test_preferences("publicnotification"); },

  test_wrong_preferences,
];

function runTest() {
  if (!tests.length) {
    finish();
    return;
  }

  var test = tests.shift();
  test();
}

runTest();

</script>
</body>
</html>
